The project construction party shall make various preparations before the installation of stainless steel ventilation pipes, specific construction scheme implementation strategy, equipment in place, on-site environmental investigation, safety prevention and control measures for construction personnel, etc.

其次，如果空調風管選擇不銹鋼通風風管，自然通風空調設備的核心工作將集中在不銹鋼風管的安裝上。因此，要了解不銹鋼通風管道的安裝特點，明確施工圖，掌握土建與其他技術的關聯性和不銹鋼通風管道的安裝工藝，檢查風管系統軟件的設計標高、線、預埋孔、預埋件等是否符合安裝標準。同時，其他輔助材料準備充分，吊裝和其他安裝工具也帶到現場，并將使用風管系統軟件。

Secondly, if stainless steel ventilation duct is selected as the central air conditioning duct, the core work of natural ventilation air conditioning equipment will focus on the installation of stainless steel duct. Therefore, it is necessary to understand the installation characteristics of stainless steel ventilation duct, clarify the construction drawings, master the correlation between civil engineering and other technologies and the installation process of stainless steel ventilation duct, and check whether the design elevation, centerline, embedded holes and embedded parts of the air duct system software meet the installation standards. At the same time, other auxiliary materials are fully prepared, hoisting and other installation tools are also brought to the site, and the air duct system software will be used.

三、不銹鋼風管的驗證：將成品風管或預制構件拉到安裝現場，根據實際情況進行檢查復核，再據此進行分揀。風管系統軟件各部分的規格和透視準確確定后，意味著風管的驗證工作已經開始。用活套法蘭連接風管所有管路，接頭處必須密封密閉。

3、 Verification of stainless steel air duct: pull the finished air duct or prefabricated components to the installation site, check and recheck according to the actual situation, and then sort accordingly. After the specification and perspective of each part of the air duct system software are accurately determined, it means that the verification of the air duct has begun. Use looper flange to connect all pipelines of air duct, and the joints must be sealed.

接下來，不銹鋼通風管道安裝有哪些注意事項?

Next, what are the precautions for the installation of stainless steel ventilation duct?

，需要根據建筑物的空間大小，一次性決定升降用不銹鋼通風管道的長度。風管的厚度、吊裝方式、吊裝設備等都要用到，連接的風管可以以兩側法蘭為基礎，中間法蘭為測點。風管的連接可以通過掛線來測量。如果風管不合適，可以適當調整后吊裝

Firstly, the length of stainless steel ventilation pipe for lifting shall be determined at one time according to the space size of the building. The thickness, hoisting method and hoisting equipment of the air duct shall be used. The connected air duct can be based on the flanges on both sides and the middle flange as the measuring point. The connection of air duct can be measured by hanging line. If the air duct is not suitable, it can be hoisted after proper adjustment

前檢查風管、支架、吊裝機具的使用方法是否恰當牢固，吊裝前檢查各種不的元件。

Before hoisting, check whether the use methods of air duct, support and hoisting machines and tools are appropriate and firm, and check various unsafe elements before hoisting.

其次，在吊裝過程中，盡量先吊少量。當距離地面0.2-0.3m時，暫停吊裝，再次檢查吊裝機械，然后再次吊裝到位置。風管固定好后，可以拆下繩索提升機。

Secondly, during the lifting process, try to lift a small amount first. When it is 0.2-0.3m from the ground, suspend the hoisting, check the hoisting machinery again, and then hoist it to the position again. After the air duct is fixed, the rope hoist can be removed.

接下來，固定好通風管道后，就可以開始安裝立管了。先安裝立管，再安裝通風主管。兩個支撐架之間的距離應小于4米，每個立管少有兩個固定卡。風管水平安裝時，平面度誤差允許為3mm，總誤差小于20mm;風管垂直安裝時，平面度誤差允許為2mm，總偏差小于20mm。

Next, after fixing the ventilation duct, you can start installing the riser. Install the riser first and then the ventilation main pipe. The distance between two support frames shall be less than 4m, and each riser shall have at least two fixing clamps. When the air duct is installed horizontally, the flatness error is allowed to be 3mm, and the total error is less than 20mm; When the air duct is installed vertically, the flatness error is allowed to be 2mm, and the total deviation is less than 20mm.

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